🛡️ CVE-2025-59031 — dovecot

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-200 NVD

4.3

CVSS Score

0 Low4 Medium7 High9 Critical10

Description

Dovecot has provided a script to use for attachment to text conversion. This script unsafely handles zip-style attachments. Attacker can use specially crafted OOXML documents to cause unintended files on the system to be indexed and subsequently ending up in FTS indexes. Do not use the provided script, instead, use something else like FTS tika. No publicly available exploits are known.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Weakness class

CVE-2025-59031 is classified as CWE-200: Exposure of Sensitive Information. Information that should stay internal is disclosed to someone who is not authorised to see it.

Affected software

CVE-2025-59031 is recorded against 1 package.

dovecot (from 3.0.0 up to 3.1.3)

Timeline and source

Published on 27 March 2026 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

documentation.open-xchange.com

CVE-2025-59031 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Alpine Debian Ubuntu

Details

Severity MEDIUM

CVSS Score 4.3

CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE CWE-200

Public Exploit ✅ No

Source NVD

Published 2026-03-27

Updated 2026-08-11

Modified 2026-06-17

Fix URL N/A

Affected Packages

Software	From version	Fixed in
dovecot	3.0.0	3.1.3

References

Vendor Advisory https://documentation.open-xchange.com/dovecot/security/advisories/csaf/2026/oxdc-adv-2026-0001.json

🔗 NVD 🔗 Mitre

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